
Preemption
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 1.11
- State:
- Illinois
Preemption is a CDP located in Mercer County, Illinois. Preemption has a 2025 population of 190. Preemption is currently growing at a rate of 7.34% annually and its population has increased by 10.47% since the most recent census, which recorded a population of 172 in 2020.
The average household income in Preemption is $95,353 with a poverty rate of 6%. The median age in Preemption is 54.8 years: 57.5 years for males, and 54.3 years for females.